input, button, select {
  vertical-align: middle;
}
input, select {
  padding: 2px;
}
input {
  width: 80px;
}
button {
  cursor: pointer;
}
h1, h2, h3, h4, p {
  margin-top: 0;
}
a {
  text-decoration: none;
  color: gray;
}
.tag {
  display: inline-block;
  margin-bottom: 8px;
  margin-right: 8px;
  font-size: 13px;
  border: 1px solid #ddd;
  padding: 3px 7px;
}
.pull-right {
  float: right;
}
.pull-left {
  float: left;
}
.clearfix::after {
  content: '';
  display: block;
  clear: both;
}
.card-box {
  padding: 20px 30px;
  border: 1px solid #ddd;
  margin-bottom: 15px;
}
button.dark {
  background-color: #444;
  border: 1px solid #444;
  color: white;
}
button.dark:hover {
  background-color: #333;
  border: 1px solid #333;
}